Material‐Dependent Antagonistic Effects between Soot and ZDDP
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Materials Interfaces"
DOI: 10.1002/admi.201901956
Abstract: While soot in engine oil is known to accelerate the wear of diesel and gasoline direct‐injection compression‐ignition engines, there is a lack of consensus on the wear mechanism though various hypotheses have been proposed in… read more here.
Keywords: antagonistic effects; zddp; tool steels; effects soot ... See more keywords
Tribological behavior of the low‐concentration boric acid and ZDDP lubricating oil mixtures
Sign Up to like & getrecommendations! Published in 2019 at "Surface and Interface Analysis"
DOI: 10.1002/sia.6656
Abstract: Zinc dithiophosphate (ZDDP)‐free environmental friendly lubricating oil research studies have gained importance due to the governmental regulations over the last decade. In this study, low concentration boric acid‐base oil and ZDDP‐base oil mixtures were investigated… read more here.
Keywords: lubricating oil; zddp; boric acid; oil mixtures ... See more keywords
Film Thickness and Friction of ZDDP Tribofilms
Sign Up to like & getrecommendations! Published in 2019 at "Tribology Letters"
DOI: 10.1007/s11249-019-1148-9
Abstract: Tribofilm formation by several zinc dialkyl- and diaryldithiophosphate (ZDDP) solutions in thin film rolling-sliding conditions has been investigated. A primary, a secondary alkyl and a mixed alkyl ZDDP show similar rates of film formation and… read more here.
Keywords: thickness friction; film; film thickness; zddp ... See more keywords
Synthesis of a Multi-phenol Antioxidant and Its Compatibility with Alkyl Diphenylamine and ZDDP in Ester Oil
Sign Up to like & getrecommendations! Published in 2019 at "Tribology Letters"
DOI: 10.1007/s11249-019-1167-6
Abstract: In this study, a multi-phenol antioxidant 2,4,6-tris(3,5-di-tert-butyl-4-hydroxyphenylthio)-1,3,5-triazine (THA) was synthesized. The thermal stability of THA and its oxidation resistance in triisodecyl trimellitate (TDTM) ester oil were evaluated compared with several commercial phenol antioxidants. Further investigations… read more here.
Keywords: compatibility; tha; phenol; zddp ... See more keywords
Synergistic nano-tribological interaction between zinc dialkyldithiophosphate (ZDDP) and methyl oleate for biodiesel-fueled engines
Sign Up to like & getrecommendations! Published in 2020 at "Friction"
DOI: 10.1007/s40544-020-0428-4
Abstract: In biodiesel-fueled compression-ignition (CI) engines, dilution by unburned biodiesel has been found to have adverse effects on the boundary lubrication properties of additives in fully formulated engine lubricants. Such dilution of engine lubricants could be… read more here.
Keywords: methyl; energy; zddp; methyl oleate ... See more keywords
In-situ observations of the effect of the ZDDP tribofilm growth on micropitting
Sign Up to like & getrecommendations! Published in 2019 at "Tribology International"
DOI: 10.1016/j.triboint.2019.06.007
Abstract: Abstract The ongoing trend for using ever lower viscosities of lubricating oils, with the aim of improving the efficiency of mechanical systems, means that machine components are required to operate for longer periods under thin… read more here.
Keywords: surface; zddp; zddp tribofilm; effect zddp ... See more keywords
Mechanochemistry of Zinc Dialkyldithiophosphate on Steel Surfaces under Elastohydrodynamic Lubrication Conditions.
Sign Up to like & getrecommendations! Published in 2020 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.9b20059
Abstract: Zinc dialkyldithiophosphate (ZDDP) is added to engine lubricants to reduce wear and ensure reliable operation. ZDDP reacts under rubbing conditions to form protective zinc/iron phosphate tribofilms on steel surfaces. Recently, it has been demonstrated that… read more here.
Keywords: steel surfaces; zinc dialkyldithiophosphate; stress; zddp ... See more keywords
What stress components drive mechanochemistry? A study of ZDDP tribofilm formation.
Sign Up to like & getrecommendations! Published in 2022 at "Faraday discussions"
DOI: 10.1039/d2fd00123c
Abstract: Zinc dialkyldithiophosphate (ZDDP), the most widely used antiwear additive in engine oils, has been extensively studied over the last few decades to help understand the origin of its effectiveness. Glassy phosphate-based tribofilms, approximately 100 nm… read more here.
Keywords: stress; tribofilm growth; growth; compressive stress ... See more keywords
The Importance of Temperature in Generating ZDDP Tribofilms Efficient at Preventing Hydrogen Permeation in Rolling Contacts
Sign Up to like & getrecommendations! Published in 2018 at "Tribology Transactions"
DOI: 10.1080/10402004.2018.1447180
Abstract: ABSTRACT High-strength steels are particularly susceptible to hydrogen embrittlement and therefore rolling element bearings can experience premature failure that drastically reduces their operation life. Some lubricant additives can prevent this by generating protective tribofilms during… read more here.
Keywords: temperature; hydrogen; permeation; importance temperature ... See more keywords
Antioxidant behavior and tribological performance of a novel multifunctional additive in complex lithium grease
Sign Up to like & getrecommendations! Published in 2021 at "Industrial Lubrication and Tribology"
DOI: 10.1108/ilt-10-2020-0380
Abstract: Purpose This paper aims to contrastively investigate the antioxidant behavior and tribological performance of a novel multifunctional additive (PBT) and dialkyldithiophosphate (ZDDP) in complex lithium grease (CLG). Design/methodology/approach PBT was successfully synthesized through esterification reaction.… read more here.
Keywords: grease; antioxidant behavior; multifunctional additive; performance ... See more keywords